Device for jointing the teeth of saws



(No Model.)

G. S. BLACK.

DEVICE FOR JOINTING THE TEETH 0F SAWS.

No. 353,659. Patented Dec. '7, 1886.

WITNESSES.

UNITED STATES PATENT OFFICE.

GEORGE S. BLACK, OF NEW ORLEANS, LOUISIANA, ASSIGNOR TO E. O. ATKINS &00., OF INDIANA.

DEVICE FOR JOINTING THE TEETH OF SAWS.

SPECIFICATION forming part of Letters Patent No. 353,659, dated December7, 1886.

(No model.)

To all whom it may concern:

Be it known that I, GEORGE S. BLACK, of

the city of New Orleans, parish of Orleans,

and State of Louisiana, have invented certain new and usefulImprovements in Saw-Jointers, of which the following is a specification.

My said invention consists in the construction of an improvedsaw-jointer, which is easily and quickly attached to the said frame andadapted to be adjusted either longitudinally or laterally of said frame,as will be hereinafter more fully described.

Referring to the accompanying drawings, which are made a part hereof,and on which similar letters of reference indicate similar parts, Figurel is aside elevation of a portion of the frame of a circular saw havingmy invention mounted thereon; Fig. 2, a top-or plan View of the jointeron an enlarged scale; Fig.

3, a transverse vertical section of the same on the dotted line 2 z,-Fig. 4, a longitudinal vertical section on the dotted line y y, and Fig.5 a horizontal section on the dotted line 00 :10.

In said drawings, the portions marked A represent the saw; B, thatportion of the framework of the mill near the front side of the saw;

O,.a saw-guide; D, the outside frame of the jointer; E, an adjustableframe in which the stone is mounted, and F said stone.

The saw A and frame B are or may be of any suitable construction, andform no part of my present invention.and therefore will not be describedin this application, except incidentally in the description of thejointer to which this invention is confined.

The guide 0 is onlynew, so far as this present invention is concerned,in being provided with dovetailed grooves c, in which it is preferred tomount the jointer, as will be pres- 4o ently more fully described.

The frame D is preferably two rectangular frames, secured together attheir top corners by bolts d, and held together atthe bottom by thegroove 0, in which they are placed. The top and bottom pieces have theiradjacent faces cut away for about half their thickness, so as to form away in which the adjustable frame E slides, as will be presentlydescribed. In one end of this frame a bearing is formed, in which thehand-nut D is j ournaled. The journal of said nut is formed smaller thanits parts on each side of the bearing, as shown, and the nut is thusheld from longitudinal movement. Said nut is put in place before the twoparts of the frame are secured together. The frame 5 5 is shown asmounted in a dovetail groove, 0,

in the top of the saw-guide; but, if desired, said groove can be formedon the top of the saw-frame instead. A groove is shown as formed on eachside of said guide, so that the jointer may be attached thereto as wellwhen one side up as the other, said guide being adapted for use withboth right and left hand mills.

The frame E is preferably of cast metal, and incases the stone. Acrossits top and bottom tongues e are formed, which fit into the ways formedin the top and bottom of the frame D, as shown. On its rear end thebottom is extended out and up a short dis- 7o t ance, with an openbearing, 6', formedin said extension, in which the hand-nut E, which issimilar in construction to the hand-nut D, is mounted. Ascrew, e, isformed on one side of said frame E and extends through said handnut, andsaid frame is thus adapted to be ad justed by turning said hand-nut, aswill be readily understood.

The stone F may be any suitable stone or file of the desired size andshape, but is preferably an emery stone. It is mounted in the frame orcasing E, as before described, and adapted to slide therein. At its rearend it is dovetailed into a metal base, F, as shown. Said metal base hasa screw, f, on its end, which extends out into the hand-nut E, withwhich it engages, and by which, through said screw, the stone isadjusted to and from the saw.

The operation of my improved saw-jointer may be briefly recapitulated,as follows: The several parts being in operative position, as shown, andit being desired to joint a saw, the base of the frame D is slid intothe dovetail groove in the top of the guide or saw frame, and the stoneF is then adjusted to and kept in the proper relation to the saw bymeans of the handnnt E. To prevent the face of the stone from becominguneven from wear during the operation, it is moved back and forthlaterally by means of the hand-nut D, the tongues e of the frame Esliding in the frame D, as

by Letters Patent, is-

1. A jointer for circular saws, consisting of an outside frame securedon the saw frame or guide, an inside frame adj ustably mounted therein,and a stone adjustably mounted in said inside frame, substantially asdescribed, and for the purposes specified.

2. The combination, ina saw-jointer, of the frame D, the base of whichis mounted in a suitable groove on the saw-frame, the frame E, providedon its top and bottom with tongues e, which slide in suitable ways insaid frame D, and the stone F, adjustahly mounted in said frame E,substantially as set forth.

'3. In a saW-jointer, the combination of the frame D, the hand-nut D,mounted in the end of said frame, the frame E, adjustably mounted Withinthe frame D, and provided on one guide, consisting of an outside frame,D, a

frame, E, adjustably mounted in said frame D,

and a stone,F, mounted in said frame E, and provided with means forlongitudinal adj ustment, substantially as set forth. 7

In witness whereof I have hereunto set my hand and seal, atIndianapolis, Indiana, this 11th day of February, A. D. 1886. GEORGE S.BLACK. [L s.l

In presence of E. W. BRADFORD, CHARLES L. THURBER.

